CVE-2026-29146
Apache Tomcat: EncryptInterceptor vulnerable to padding oracle attack by default
HIGH 7.5
At a glance
- Source
- NVD
- EPSS
- EPSS 8.85 % · percentile 95 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- apache
- NVD status
- Modified
Description
Padding Oracle vulnerability in Apache Tomcat's EncryptInterceptor with default configuration. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.18, from 10.0.0-M1 through 10.1.52, from 9.0.13 through 9..115, from 8.5.38 through 8.5.100, from 7.0.100 through 7.0.109. Users are recommended to upgrade to version 11.0.19, 10.1.53 and 9.0.116, which fixes the issue.
Weaknesses (CWE)
- CWE-209 — Generation of Error Message Containing Sensitive Information
- CWE-642 — External Control of Critical State Data
- CWE-1240 — Use of a Cryptographic Primitive with a Risky Implementation
References
- https://lists.apache.org/thread/lzt04z2pb3dc5tk85obn80xygw3z1p0w
- http://www.openwall.com/lists/oss-security/2026/04/09/24
- https://access.redhat.com/security/cve/CVE-2026-29146
- https://bugzilla.redhat.com/show_bug.cgi?id=2457020
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-29146.json
- https://access.redhat.com/errata/RHSA-2026:20405
- https://access.redhat.com/errata/RHSA-2026:39188
- https://access.redhat.com/errata/RHSA-2026:38505
- https://access.redhat.com/errata/RHSA-2026:36787
- https://access.redhat.com/errata/RHSA-2026:36789
- https://access.redhat.com/errata/RHSA-2026:36788
- https://access.redhat.com/errata/RHSA-2026:36790
- https://access.redhat.com/errata/RHSA-2026:37137
- https://access.redhat.com/errata/RHSA-2026:37136
- https://access.redhat.com/errata/RHSA-2026:36878
- https://access.redhat.com/errata/RHSA-2026:36876
- https://access.redhat.com/errata/RHSA-2026:36877
- https://access.redhat.com/errata/RHSA-2026:36879
- https://access.redhat.com/errata/RHSA-2026:20406
- https://access.redhat.com/errata/RHSA-2026:39189
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N | CISA-ADP |
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N | redhat-SADP |
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N | NVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary) |
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N | NVD · 0b0ca135-0b70-47e7-9f44-1890c2a1c46c (Secondary) |
Advisories
- GHSA-h468-7pvh-8vr8 — Apache Tomcat: Padding Oracle vulnerability in EncryptInterceptor
European references
- ENISA EUVD · EUVD-2026-21012
- GCVE · GCVE-0-2026-29146
CERT-FR advisories
- CERTFR-2026-AVI-1032 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0958 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0934 — Multiples vulnérabilités dans les produits Atlassian · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0933 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0621 — Multiples vulnérabilités dans les produits Atlassian · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0418 — Multiples vulnérabilités dans Apache Tomcat · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*≥ 7.0.100 ≤ 7.0.109cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*≥ 8.5.38 ≤ 8.5.100cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*≥ 9.0.13 < 9.0.116cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*≥ 10.0.0 < 10.1.53cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*≥ 11.0.0 < 11.0.20
Affected products
| Product | Versions |
|---|---|
| Apache Software Foundation · Apache Tomcat | affected 11.0.0-M1 ≤ 11.0.18 ; affected 10.0.0-M1 ≤ 10.1.52 ; affected 9.0.13 ≤ 9.0.115 ; affected 8.5.38 ≤ 8.5.100 ; affected 7.0.100 ≤ 7.0.109 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |